Maintaining stable cooling system pressure is vital for the longevity of 4JA1 engines. The 5-21450005-0 radiator cap serves as a precision-engineered safety valve, preventing coolant boil-over and thermal stress during intensive city transport or heavy-duty field operations in mining environments.
Item NO.:
8-97221676-0Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time：
2-3 DAYS
The 521450-0050 features a robust, corrosion-resistant steel casing and high-temperature silicone seals, significantly outperforming generic aftermarket caps. By upgrading your NHR fleet with this OEM-standard component, you minimize engine overheating risks, reduce fluid loss, and ensure consistent operational uptime.
Product Features
Precision Pressure Regulation The 521450-0050 is calibrated to exact OEM specifications, ensuring consistent internal pressure to prevent cooling system fatigue and leaks.
Heat-Resistant Silicone Seals Equipped with high-performance gaskets that resist thermal degradation, ensuring a perfect airtight seal under extreme temperature fluctuations.
Corrosion-Resistant Steel Shell Features a heavy-duty, rust-proof exterior that protects the internal spring mechanism from moisture and chemical exposure in rugged sites.
Optimized Flow Stability Designed to facilitate efficient vacuum release, preventing radiator tank collapse and ensuring smooth coolant circulation throughout the engine.
Product Specification
| Product Name | Radiator Cap / Cooling System Pressure Cap |
| OEM Part Number | 5-21450005-0 / 521450-0050 / 5214500050 |
| Engine Model | Isuzu 4JA1 / 4JB1 / 4JH1 |
| Application | Isuzu NPR / NKR Truck, ELF Series, Excavators, Forklifts |
| Material |
|
| Installation Type | Direct Replacement (Standard OEM Size) |
| Thickness | Standard OEM Specification |
| Color | Metallic Silver / Black Seal |
| Working Temperature | -40°C to 130°C(High-heat exhaust resilience) |
| Key Function |
|
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Neutral Packing / Customized Box |
Why Choose Us
1.We have profession isuzu team,more than 20 years experience business isuzu parts.
2. We can offer used and new isuzu genuine parts, oem,good quality made in china parts to you.
3. The isuzu genuine parts will give weight,price when quotation.
4.Isuzu genuine stock pictures will send before order.
5.All isuzu parts can check with part number,all parts can order follow part number.
6. Quick delivery time,in 24 hours if sotck.
7. Safe packing to protect the goods, such as wooden box, Iron sheet for our isuzu parts.
8. Small quantity can accept.Sample order also accept.
9. 24 hours oversea service.
10.Lifelong after-sales service.
Certificate
What's the shipping way you can offer?
1) Big order: By sea or by air.(It can reduce the costs)
2) Small order: DHL, TNT, UPS, FEDEX, EMS,ARAMEX
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